Guide Number (ISO 100/m) (land) : 32, 24 (with Diffuser 100 attached),
20 (with Diffuser 120 attached)
Beam Angle : 80°x80° (without Diffuser),
100°x100°(Diffuser 100)
120° x 120° (Diffuser 120)
Batteries : 4xAA A: 6V Ni-MH: 4.8V
Number of Flashes *1 : A: 150 Ni-MH: 200
Recycle time (full) *2 : A: 3.0 sec. Ni-MH: 1.5 sec.
Color temperature : 5600K
Color temperature w/diffuser : 5250K
Depth rating : 100m / 330ft
Dimensions (WxHxD) （Excluding protruding part(s) and the arm holder）: 89x133x116mm / 3.5 x 5.2 x 4.6 inches (incl. YS base but excluding protruding parts)
Weight : 623g / 22.0oz (w/o batteries) (inc. YS-mount and fixing bolt. Without batteries)
Underwater weight : Approx.+40g / 1.4oz (incl. batteries)
Exposure control : DS-TTL II, Slave TTL, Light level control dial (GN): 1 / 1.4 / 2 / 2.8 /4 / 5.6 /8 / 11 / 16 / 22 / 32 (11 steps)
Pre-flash control : Equipped with pre-flash cancel mode
DS-TTL II function
Slave function
Auto power OFF function
Sync cord: 5-pin Sync cord/N, Fiber-Optic Cable
Over-pressure relief valve LED target light (output is adjustable in 2 steps)
Audible charge signal
*1 Number of flashes and recycle time depends on the battery brand, temperature and frequency of use.
*2 Number of flashes and recycle time of Ni-MH batteries were tested on 2400 mAh batteries.